Busch COBRA NS 0070–0600 C User manual

Brand: Busch

Model: COBRA NS 0070–0600 C

Type: User manual

Installationand

MaintenanceInstructions

ScrewVacuumPumps

COBRANS0070-0160C

0870570353/-0002/ 120521/Originalinstructions/Modificationsreserved

Get technical data,

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service kits

TableofContents

Preface ............................... 2

Productdescription ......................... 4

Use ................................ 4

Operatingprinciple ....................... 4

Cooling.............................. 4

Nitrogensystem(option) .................... 4

Safetyvalve ........................... 4

On/Offswitch .......................... 5

Safety ............................... 5

Intendeduse ........................... 5

Safetyinformation ........................ 5

Noiseemission .......................... 5

Transport .............................. 5

Transportinpackedstate .................... 5

Transportinunpackedstate ................... 5

Transportwithlifting ....................... 5

Storage ............................... 6

Temporarystorage ........................ 6

Removalofthepump ...................... 6

Preservation ........................... 6

Start-upofthevacuumpumpafterstorage: .......... 6

InstallationandCommissioning .................. 6

Installationprerequisites ..................... 6

Localinstallation ........................ 6

Inletconnection ....................... 7

Dischargeconnection ..................... 7

Coolingwaterconnection ................... 8

Nitrogenconnection ...................... 8

Electricalconnection/Checks ................. 8

Installation ............................ 8

Assembly............................ 8

Electricalconnection ...................... 8

Temperatureswitchconnection ................ 9

CoolingwaterflowmeterFIS-/01connection ......... 9

Settingthecoolingwaterflow ................. 9

NitrogenflowmeterFIS-/02connection(option)........ 9

Settingthenitrogensupply(purgegas)(option) ........ 9

Connectionofthelines/pipes ................ 10

Oilfilling ........................... 10

Fillingincoolingliquid .................... 10

Savingtheoperatingparameters ............... 11

Recommendationsonoperation................. 11

Application .......................... 11

Switchingthevacuumpumpon/off ............. 12

Firststart-upofthesystem ................ 12

Switchingthesystemoff .................. 12

Maintenance ........................... 12

Maintenanceprogram...................... 12

Weekly:............................ 12

Monthly: ........................... 13

Yearly: ............................ 13

Every16’000operatinghours,atthelatestafter4Years:... 13

Switchingoffformaintenancework ............. 13

Switchingonaftermaintenancework............. 13

Checkingtheoil......................... 13

Checkingtheoillevel .................... 13

Refillingoil .......................... 13

Checkingthecolouroftheoil ................ 13

Oilchange .......................... 14

Drainingusedoil ...................... 14

Fillinginnewoil ....................... 14

Checkingthecoolingliquid .................. 14

Checkingthelevelofthecoolingliquid ........... 14

Refillingcoolingliquid .................... 14

Fillingincoolingliquid .................... 14

Drainingthecoolingliquid .................. 14

Checkingthecoolingwater ................... 15

Checkingthecoolingwaterflow ............... 15

Checkingthenitrogen...................... 15

Checkingthenitrogenflow.................. 15

Checkingthecurrentconsumption ............... 15

Checkingtheexhaustsilencer(SI)(optionalaccessory) ..... 15

Overhaul ............................. 15

Removalfromservice ....................... 15

Temporaryremovalfromservice ................ 15

Dismantlinganddisposal .................... 15

Troubleshooting .......................... 17

Oiltype/quantity ........................ 19

Oiltype............................ 19

Oilquantity.......................... 19

Coolingliquidtype/quantity ................... 20

Coolingliquidtype ...................... 20

Coolingliquidquantity ..................... 20

TechnicalData........................... 21

EU-DeclarationofConformity ................... 22

Preface NS0070-0160C

Page 2 0870570353(En)

Preface

CongratulationsonyourpurchaseoftheBuschvacuumpump.With

watchfulobservationofthefiled'srequirements,innovationandsteady

developmentBuschdeliversmodernvacuumandpressuresolutions

worldwide.

Theseoperatinginstructionscontaininformationfor

–productdescription,

–safety,

–transport,

–storage,

–installationandcommissioning,

–maintenance,

–overhaul,

–troubleshootingand

–spareparts

ofthevacuumpump.

Forthepurposeoftheseinstructions,"handling"thevacuumpump

meansthetransport,storage,installation,commissioning,influenceon

operatingconditions,maintenance,troubleshootingandoverhaulof

thevacuumpump.

Priortohandlingthevacuumpumptheseoperatinginstructionsshall

bereadandunderstood.Ifanythingremainstobeclarifiedplease

contactyourBuschrepresentative!

Keeptheseoperatinginstructionsand,ifapplicable,otherpertinent

operatinginstructionsavailableonsite.

UK-Declaration of Conformity. . . . . . . . . . . . . . . . . . . . . . . . . . . . ..23

NS0070-0160C

0870570353(En) Page 3

EV DGR

ODP

OSG

OUT

OFP GC

CWR

DGR

OFP

OSG

ODP

MOT

CLD

PMR

CLF

CWo

CWi

FIS-/01

FIS-/02

COBRANS0070/0160Cwithbaseframeandinletadapterflangeforboostermounting

IN Inlet

OUTDischarge

MOTMotor

CLFCoolingliquidfillerplug

CLDCoolingliquiddrainplug

CWiCoolingwaterinlet

CWoCoolingwateroutlet

CWRCoolingwaterregulatingvalve

FIS-/01Coolingwaterflowmeter

OFPOilfillerplug

OSGOilsightglass

ODPOildrainplug

GCNitrogenconnection(option)

DGRNitrogenregulatingvalve(option)

FIS-/02Nitrogenflowmeter(option)

PMRUnblockingscrewforrotors

EV Expansionvessel

SV Safetyvalve

SISilencer(option)

TV Thermostaticvalve

BFBaseframe

CWR

DGR

Cooling wate

outlet

Cooling wate

inlet

Nit

ogen supply

ocess gas outlet

ocess gas inlet

Barrier gas (option)

Dilution gas (option)

FIS-/01

FIS-/02

FIS-/01Coolingwaterflowmeter

FIS-/02Nitrogenflowmeter(option)

TV Thermostaticvalve

CWRCoolingwaterregulatingvalve

DGRNitrogenregulatingvalve(option)

Productdescription

Use

TheCOBRANSvacuumpumpsaredesignedforuseinthefieldof

industrialapplicationsandsimilarindustries.

Theycanbeusedtodrawgasesandgasmixtures.

WARNING

Whenusingtoxic,inflammableand/orexplosivegases,makesure

thatthesystemcorrespondsindesigntoapplicablelocaland

nationalsafetyregulationsandthatallapplicablesafetymeasures

arefollowed.

Allproduct-specificsafetyregulationsmustbeobserved.

Corrosioninsidethecompressionchambercanreducethepump

peformanceanditslifetime.Thereforethechemicalcompatibilityofthe

processgaseswiththepumpcomponentmaterialsshouldbechecked.

Indoubt,pleasecontactyourBuschrepresentative.

Pumpcomponentmaterialswithprocessgascontact:

–ductilecastiron

–nickel+polytetrafluoroethylene(PTFE)

–fluoroelastomer(FKM/FPM)

–steel/stainlesssteel

Solidparticlesmustnotgetintothevacuumpump.Proceduralerrors

canresultinthepumpsuckinginacertainquantityofliquid.Ifthe

pumphassuckedinliquid,ashortdryingtimeisnecessaryattheend

oftheprocess.

Thetemperatureofthedrawngasdependsontheinletpressure.The

lowertheinletpressure(Pa)is,thehigherthetemperatureofthe

drawngascanbe(TGas).Followingvaluesapply:

–Pa<50mbar,TGas<200°C

–Pa>50mbar,TGas<70°C

Thevacuumpumpisdesignedforuseinanenvironmentwhichis

non-explosive.

Max.permissiblenumberofstartingsperhour:6.

Asfarastemperatureisconcerned,thepumpissuitableforcontinuous

dutyatanyinletpressurebetweenatmosphericpressureandultimate

pressure.

Operatingprinciple

TheCOBRANSvacuumpumpsarevacuumpumpswithcoolingwater

andnitrogencircuits(optional).

TheCOBRANSscrewvacuumpumpsworkbytheprincipleofscrew

pumps.Twoparallelscrews(7)rotateinoppositedirectionsinthe

pumpbody.Enteringgasesaretrappedbetweentheflightsofthe

screwsandthepumpbody.Thegasesareconveyedbytherotationof

thescrewstotheexhaust,wheretheyaredischarged.

TheCOBRANSscrewvacuumpumpsisdrivenbyawater-cooled

motor.

TheCOBRANSscrewvacuumpumpscanbecombinedwithaBusch

boosterpump,i.e.typeWY0500C.

Cooling

Thevacuumpumpiscooledby

–acoolingwatercircuitinthecylinder(4)(indirectcooling).A

temperatureprobemountedinthecylinderofthepumpregulates

athermostaticallycontrolledvalve(TV).Thewaterflowis

regulatedbysettingofthevalvefromposition0(cold)toposition

4(warm).Thesettingdependsonthevacuumapplication.

Useofahighersettingisrecommendedforthethermostatically

controlledvalvetopreventre-sublimationorcondensationinside

thepump.

CAUTION

Changingfromposition0toposition4orviceversamusttakeplace

insteps.Thepumpmuststabiliseaftereverychangeinsetting.

Neverswitchdirectlyfromposition0toposition4orviceversa.

–acoolingwatercircuitinthemotorandinthedrivehousing(4)

(directcooling).Thecoolingwaterflowisfactoryseton2l/min

andcanbeadjustedattheregulatingvalveCWR.Thiswatercircuit

isusedtocoolthemotorandtheoil.

–fillingofacoolingliquid(water-glycolmixture)inthewater

chambers(6).

NOTE:TheNS0070-0160Cvacuumpumpsarealwaysdelivered

withoutoil,withoutcoolingwaterandwithoutcoolingliquid.

Operationwithoutthesecoolantscanresultindamagetothevacuum

pump.

Nitrogensystem(option)

Thenitrogensystemperformstwomainfunctions

–thenitrogenisusedasdilutiongas.Thenitrogenflowisfactoryset

to18SLMandcanbeadjustedattheregulatingvalveDGR

accordingtotheapplication.Thenitrogenisinjectedintothe

compressionchamber.Dilutionleadstoanimprovementinthe

functionofthescrewsparticularlywhendrawingcorrosivegases.

–thenitrogenisusedassealinggas.Thenitrogenisinjectedintothe

intermediatechamber(5)tokeepprocessgasoutofthegearbox.

Tosetthenitrogenpressureof1,5barrecomended(max.3bar)at

theinlet,amanometerandanitrogenregulatingvalvearenecessary

toinstallonthevacuumpump.

Safetyvalve

Thesafetyvalve(SV)preventsexcessivelyhighpressureinthe

expansionvessel(EV),reliefpressure:6bar.

Asilencer(SI)(optionalaccessory)attheexhaustreducesthenoise

emissionofthepump.

Productdescription NS0070-0160C

Page 4 0870570353(En)

1 Inlet

2 Discharge

3 Oil

4 Coolingwater

5 Barriergas

6 Coolingliquid

7Screwrotors

On/Offswitch

Thevacuumpumpisdeliveredwithouton/offswitch.Thecontrolof

thevacuumpumpmustbeprovidedinthecourseoftheinstallation.

Safety

Intendeduse

DEFINITION:Toruleoutanymisunderstanding,theterm“handling”

ofthevacuumpumpcoverstransport,storage,installationand

operationofthepumpaswellaseffectsonoperatingstatesand

troubleshootingonthevacuumpump.

Thevacuumpumpisintendedforindustrialuse.Itmayonlybe

operatedbyqualifiedpersonnel.

Thedifferentapplicationpossibilitiesandlimitvaluesforoperation

describedin“Productdescription”and“Installationrequirements”

mustbeobservedbythemanufacturerofthesystemintowhichthe

vacuumpumpistobeintegratedandbyusers.

Theneedforpersonalsafetyregulationsdependsinprincipleonthe

typeofuse.Theoperatormustprovidetheuserswiththenecessary

meansandmustinformhispersonnelaboutthedangersemanating

fromtheprocessedproduct.

Theoperatorofthevacuumpumpmustobservethesafetyregulations

andmusttrainandinstructhispersonnelaccordingly.

Localregulationsregardingthemotorsandelectriccontrolelements

mustbeobservedwheninstallingthepumpinpotentiallyexplosive

environments.

Themaintenanceinstructionsmustbefollowedandobserved.

Theseinstallationandmaintenanceinstructionsmustbereadand

understoodbeforethevacuumpumpisused.Ifyouhaveanydoubts,

contactyourBuschrepresentative.

Safetyinformation

Thevacuumpumpisdesignedandmanufacturedincompliancewith

thelatesttechnicalstandardsandsafetyregulations.Neverthelessan

elementofresidualriskremains.

Varioussafetyinstructionsaretobefoundinthishandbookandonthe

pump.Theseinstructionsmustbefollowed.Youcanrecognisethese

instructionsbythesignalwordsDANGER,WARNINGandCAUTION,

whicharedefinedasfollows:

DANGER

Disregardofthissafetyinstructionwillalwaysresultindeath,

seriousinjuriesorseveredamage.

WARNING

Disregardofthissafetyinstructionmayresultindeath,serious

injuriesorseveredamage.

CAUTION

Disregardofthissafetyinstructionmayresultinminorormoderate

injuriesordamage.

Noiseemission

ForthesoundpressurelevelaccordingtoENISO2151,see"Technical

data".

CAUTION

Theintensityofthenoiseofthevacuumpumpishigherwithina

certainareaofthepump.

Riskofhearingdamage.

Usersmustwearearprotectionwhenspendingalongerperiodof

timeinthevicinityofanon-insulatedvacuumpump.

Transport

TheCOBRANSvacuumpumpsaretestedandcheckedinourfactory

beforecarefulpacking.Checkthepackagingfortransportdamage

whenthegoodsarrive.Thepumpcanwithstandtemperatures

between-25°Cand+55°Cduringtransport.

Transportinpackedstate

Packedonapallet,thevacuumpumpcanbetransportedwitha

forklift.

Transportinunpackedstate

Thevacuumpumpisfastenedtothepalletwithfixingpins:

uUnscrewthefasteningnutsunderneaththepallet.

CAUTION

Donotwork,walkorstandundersuspendedloads.

CAUTION

Pleasecheckouttheweightofthevacuumpumpbeforeliftingitup

(see"TechnicalData"orpumpnameplate).

Useadequateliftinggearforthis.

NOTE:Thesuspensioneyesarelocatedataboutthecentre-of-gravity

ofthevacuumpump.Ifthevacuumpumpisequippedwithaccessories

thatcouldinfluencethecentre-of-gravity,thismustbetakeninto

accountwhenliftingandabeltmustadditionallybeattachedtoa

specificpoint.

Transportwithlifting

Thepumpcanbeliftedasindicatedinthegraphsbelow:

lFastenthehoisttotheliftingeye(s)onthepumphousing.

CAUTION

Donotusetheliftingeyeofthemotortoliftthepump!

NS0070-0160C Safety

0870570353(En) Page 5

Liftingbytheliftingeye

lUseahoistthatisequippedwithahookandsafetylock.

lLiftthevacuumpump.

Ifthepumpisfastenedtoapalletwithfixingpins:

uUnscrewthefixingpinsintherubberfeet.

CAUTION

Thevacuumpumpmaynotbeliftedanymorewhenithasbeen

filledwithoil.

Makesurebeforeeverytransportthattheoilhasbeendrainedoutof

thevacuumpump.

Thepackagingmaterialmustbedisposedofinaccordancewithlocal

andnationalregulations.

Thishandbookiscontainedinthedeliverypackage.

Storage

Temporarystorage

lMakesurethattheintakeandexhaustflangesareclosed(puton

theprotectivecapsincludedinthedeliverypackageofthevacuum

pump).

lStorethevacuumpump.

–Ifpossible,thevacuumpumpshouldbestoredinitsoriginal

packaging

–indoors,

–dry,

–inadust-freeand

–vibration-freeroom.

Removalofthepump

Beforestartingavacuumpumpthathasbeenstoredoutsidethe

buildingforawhile,thevacuumpumpmustbemovedtoaroomwith

ambienttemperature,whereitshouldrestforaday.

Preservation

Ifthevacuumpumpwillbeexposedtounfavourableambient

conditions(forexample,aggressiveenvironment,frequenttemperature

changes),beginimmediatelywithpreservationworkonthevacuum

pump.

Inthecaseoffavourableambientconditions,performpreservation

workonthevacuumpumpifastorageperiodofmorethanthree

monthsisplanned.

lDraincoolingwater

lMakesurethatallopeningsarehermeticallysealed;useadhesive

tapetofastenlooseparts(sealrings,flatseals,etc.).

lWrapthevacuumpumpinaVCIfilm.

NOTE:VCIistheabbreviationfor“volatilecorrosioninhibitor”.The

VCImoleculeisanorganiccorrosioninhibitorinthevapourphase.

Integratedinvariouscarrierssuchasfilm,cardboard,paper,foam,

liquidandpowder,itprotectsthepartsagainstcorrosionasaresultof

itsactioninthevapourphase.However,VCIpackagingcanattack

syntheticsurfacesandsurfacesofotherelastomers.Ifindoubt,please

contactyournearestdistributor.VCIpackagingprovidesseveralyears

ofprotectionagainstcorrosion,evenundertheharshestofconditions:

overseasshipment,extendedstoragebeforeuse.

lStorethevacuumpump.

–Ifpossible,thevacuumpumpshouldbestoredinitsoriginal

packaging

–indoors,

–dry,

–inadust-freeand

–vibration-freeroom.

Start-upofthevacuumpumpafterstorage:

lMakesurethatallprotectiveelements,stoppersoradhesivetapes

attachedbeforepreservationhavebeenremoved.

lSwitchonthevacuumpumpinthesequencedescribedinthe

chapter“InstallationandCommissioning”.

Installationand

Commissioning

Installationprerequisites

CAUTION

Incaseofnon-compliancewiththeinstallationprerequisites,

particularlyinthecaseofinsufficientcooling:

Riskofdamageordestructionofthevacuumpumpandits

components!

Riskofpersonalinjury!

Theinstallationprerequisitesmustbecompliedwith.

lMakesurethattheintegrationofthevacuumpumpinitsnew

environmentcomplieswiththesafetyregulationsaccordingtothe

MachineryDirective2006/42/EC(regardingtheresponsibilityof

themanufacturerofthesysteminwhichthevacuumpumpistobe

integrated,seeinformationinthedeclarationofconformity).

WARNING

Localregulationsregardingthemotorsandelectriccontrol

elementsmustbeobservedwheninstallingthepumpinpotentially

explosiveenvironments.Makesurebeforestart-upthatallsafety

measureshavebeenfollowed.

Localinstallation

lMakesurethattheenvironmentofthevacuumpumpisnot

potentiallyexplosive.

lMakesurethatthefollowingambientconditionsarefulfilled:

–ambienttemperature:0...40°C(32...104°F)

–ambientpressure:atmospheric

–humidity:max.95%,non-condensing

lMakesurethatthecoolingwaterfulfillsthefollowing

requirements:

–temperature:10-30°C

–waterpressure:3-6bar(relative)

–waterhardness:<5°dGH

–totalwaterflowrate:³3l/min

Storage NS0070-0160C

Page 6 0870570353(En)

Liftingwiththehoistingsling

–Requiredpressuredifferentialacrosssupplyandreturn: ³3bar

lToreducethemaintenanceeffortandtoachievealongproduct

lifetimewerecommendthefollowingcoolingwaterquality:

–Hardness:

<5°dH(degreesGermanhardness)

<9°fH(degreesFrenchhardness)

<1.25°e(degreesEnglishhardness)

<90mg/kgCaCO3(Americanhardness)

–Properties:Clean&clear

–pHvalue:7-9

–Particlesize: <200 mm

–Chloride: <100mg/l

–Freechlorine: <0.3mg/l

–Materialsincontactwiththecoolingwater:Stainlesssteel,copper

lMakesurethatthevacuumpumpisfastenedtoprevent

inadvertentmovement

lMakesurethatthevacuumpumpisleveltoamaximumof1°in

anydirection

lMakesurethattheenvironmentconditionscorrespondtothe

protectionclassofthemotor(accordingtomotornameplate)

lMakesurethatthevacuumpumpisfastenedtoprevent

inadvertentmovement

lMakesurethatthecoolingwaterisneutralandclean.

lMakesurethatthenitrogenfulfillsthefollowingrequirements

(option):

–pressure:1.5bar

–approximateflowrate:0-18SLM

lMakesurethattheambientconditionscorrespondtothe

protectionclassofthemotor(s)(accordingtonameplate).

lMakesurethatthevacuumpumpislevel.

lMakesurethatthevacuumpumpiseasilyaccessibleandthatthe

selectedinstallationsitefulfillstherequirementsforassembly/

dismantling.

lMakesurethatnotemperature-sensitiveparts(forexample,of

plastic,wood,cardboard,paper,electronicparts)comeinto

contactwiththehotsurfacesofthevacuumpump.

lMakesurethattheinstallationsiteorassemblyareaisventilatedin

suchawaythatadequatecoolingofthevacuumpumpisensured.

CAUTION

Thesurfacetemperatureofthevacuumpumpcanexceed70°C

whenthevacuumpumpisinoperation.

Riskofburns!

lMakesurethatno-onecantouchthevacuumpumpaccidentally.

Ifnecessary,attachsafeguard.

lMakesurethattheoilsightglasses(OSG)areeasilyaccessible.

Ifoilchangesaretobemadeonsite:

uMakesurethattheoildrainandoilfillerareeasilyaccessible.

Inletconnection

lMakesurethattheprotectionthatwasattachedtoprevent

penetrationofparticlesduringtransporthasbeenremovedbefore

thevacuumpumpisconnectedtothevacuumline.

CAUTION

Donotputhandsintotheinletaperture.

Riskofbodydamage!

CAUTION

Theintakeofliquidsorsolidparticlescanleadtothedestructionof

thevacuumpump.

Ifthesuckedgascontainsdustsorsolidforeignbodies:

uMakesurethatasuitablefilterorprotectivescreenisinstalled

attheinletofthevacuumpump.

lMakesurethatthenominaldiameteroftheintakelineisatleast

equaltothediameteroftheintakeflangeofthevacuumpumpto

preventadropintheperformanceofthevacuumpumpinthecase

ofasmallercross-section.

lMakesurethatthevacuumpumpisconnectedwithleakproof

lines.

CAUTION

Whentheintakelineshavebeenconnected,makesurethatthe

systemdoesnotleak.Leakagesofdangeroussubstancesmustbe

prevented!

lMakesurethattheintakelinesareequippedwithashut-offdevice

upstreamoftheintakeflangesothattheflowofdrawngascanbe

stopped.

lMakesurethattheintakelinesdonotexerciseanyloadonthe

intakeflange.Mountbellowsifnecessary.

lTheintakeflangeshavethefollowingdimensions:

–DN40ISOKFforNS0070C

–DN50ISOKFforNS0160C

Inthecaseoflongintakelinesthelinecross-sectionshouldbelarger

thantheintakeflangetopreventadropintheperformanceofthe

vacuumpump.Ifyouhaveanydoubts,contactyourBusch

representative.

Dischargeconnection

CAUTION

Donotputhandsintotheoutletaperture.

Riskofbodydamage!

Thefollowinginstructionsforconnectiontotheexhaustonlyapplyif

thedrawngasisdischargedbythevacuumpumpintoasuitable

environment.

lMakesurethattheprotectionthatwasattachedtopreventingress

ofparticlesduringtransporthasbeenremovedbeforethevacuum

pumpisconnectedtotheexhaustline.

lMakesurethatthenominaldiameteroftheexhaustlineisatleast

equaltothediameteroftheexhaustflangeofthevacuumpump

topreventadropintheperformanceofthevacuumpumpinthe

caseofasmallercross-section.

lMakesurethatthevacuumpumpisconnectedwithleakproof

lines.

CAUTION

Whentheexhaustlineshavebeenconnected,makesurethatthe

systemdoesnotleak.Leakagesofdangeroussubstancesmustbe

prevented!

lMakesurethattheexhaustlineismountedinsuchawaythat

condensatecannotpenetrateintothepump(siphontrap,slope).

lMakesurethatnoshut-offdevicesaremountedintheexhaust

line.

lMakesurethattheexhaustlinesdonotexerciseanyloadonthe

exhaustflange.Mountbellowsifnecessary.

lTheexhaustflangehasthefollowingdimension:

NS0070-0160C InstallationandCommissioning

0870570353(En) Page 7

–DN40ISOKFforNS0070-0160C

Inthecaseoflongexhaustlinesthelinecross-sectionshouldbelarger

thantheexhaustflangetopreventadropintheperformanceofthe

vacuumpump.Ifyouhaveanydoubts,contactyourBusch

representative.

Asilencer(SI)(optionalaccessory)canbefittedtothepumpdischarge

toavoidpulsationandsoundtransmissionintotheexhaustline.

Coolingwaterconnection

Thecoolingwaterisgenerallyconnectedwithahose.

Connectiondiameter:

–coolingwaterinlet:3/8''NPT

–coolingwateroutlet:3/8''NPT

Nitrogenconnection

Connectiondiameter:1/4''NPT

Electricalconnection/Checks

lMakesurethattheregulationsoftheElectromagnetic

CompatibilityDirective2014/30/EUaswellasstandardEN

norms,safetydirectivesandespeciallylocalandnational

regulationsareobserved(thisistheresponsibilityofthe

manufacturerofthesystemintowhichthevacuumpumpis

integratedaccordingtothedeclarationofconformity).

lMakesurethatthemainspowersupplycorrespondstothedataon

thenameplate(s)ofthemotor(s).

lMakesurethatanoverloadcut-outaccordingtoEN60204-1is

providedforthemotor(s).

lMakesurethatthedriveofthevacuumpumpisnotdisturbedby

anyelectricorelectromagneticinterferences.Ifyouhaveany

doubts,contactyourBuschrepresentative.

Installation

Assembly

lMakesurethatthe“necessaryinstallationinstructions”are

followed.

lFastenorinstallthepumpatitsfinalinstallationsite.

Electricalconnection

WARNING

Riskofelectrocution,riskofdamage.

Electricalinstallationmustbeperformedbyasuitablyqualified

electricianwhoknowsandfollowsthefollowingregulations:

- IEC364orCENELECHD384orDINVDE0100,

- IECReport664orDINVDE0110,

- VBG4orcorrespondingnationalregulationsonaccident

prevention.

CAUTION

Thecircuitdiagramsdescribedbelowconformtothestandard.

Othercircuitdiagramsmightbeused.Thisdependsonthe

particularorderandthemarket.

Riskofdamagetothemotor!

Checktheconnectionofthemotorinsidetheterminalbox

accordingtothecircuitdiagram.

WARNING

Theoperatingrotationalspeedofthedrivemotormustcorrespond

tothepump'snameplatevalue.Donotexceedthementioned

rotationalspeed.

nmax =3000min-1 ->50Hz+/-2%

nmax =3600min-1 ->60Hz+/-2%

Riskofdamagetothevacuumpump!

lConnectthemotorelectrically.

lConnecttheearthlead.

InstallationandCommissioning NS0070-0160C

Page 8 0870570353(En)

Coolingwaterandnitrogenconnections

Ateliers Busch S.A.

Zone Industrielle

CH-2906 Chevenez

Vacuum Pump

NS 0160 C

S/N = C1405009999

pabs = 0.03 hPa (mbar) Vmax = 160 m /h

nmax = ***** min

Oil = Busch YLC 250 B

-1 m = 250 kg

Oil quantity = 2 L

Made in

Switzerland

Year 2014

nmax = 3000 min

-1

nmax = 3600 min -1

PTC

Starconnection(YHighvoltage:400V):

Deltaconnection(DLowvoltage:208V):

Temperatureswitchconnection

CAUTION

Ifthevacuumpumpisoperatedwithamotorthatturnsinthe

wrongdirection,itcanbedestroyed,evenifthisisthecaseforonly

ashortmoment.

Makesurethatthevacuumpumpisconnectedcorrectlybefore

switchingiton.

lDeterminethedirectionofrotationbyusingapressuremeasure

toolorbyplacingarubberplateontheinlet

lPresstheon/offswitchbriefly.

lMakesurethatthevacuumpumpdrawsin.

Ifthedirectionofrotationhastobechanged:

uSwitcharoundanytwoofthemotorwiresintheterminalbox

CoolingwaterflowmeterFIS-/01connection

lConnectthecoolingwaterflowmeteraccordingtotheconnection

planbelow:

Technicaldata:

–Umax:250V

–Imax:1,5A

–Max.50VA

–IP65

–Pressureresistance:16bar

–Setting:2l/min

Settingthecoolingwaterflow

TheflowofthecoolingwaterismonitoredbytheflowmeterFIS-/01.

Theflowmetermustbeconnectedinsuchawaythatswitchingleads

toanalarmandstoppingofthevacuumpumpwhentheflowdrops

below2l/min.

Thecoolingwaterflowisfactoryseton2,5l/minandcanbeadjusted

attheregulatingvalveCWR.Thiswatercircuitisusedtocoolthe

motorofthepumpandtheoil.

NitrogenflowmeterFIS-/02connection

(option)

lConnectthenitrogenflowmeteraccordingtotheconnectionplan

below:

Settingthenitrogensupply(purgegas)

(option)

TheflowofthenitrogenischeckedbytheflowmeterFIS-/02.The

flowmetermustbeconnectedinsuchawaythatswitchingleadstoan

alarmandstoppingofthevacuumpumpwhentheflowdropsbelow

16l/min.

Thenitrogenflowisfactoryseton18Nl/minandcanbeadjustedat

theregulatingvalveDGRaccordingtopumpuse.

Thepurgegassupplyistypicallyequippedwithpressureregulatorsand

solenoidvalves.Disfunctionsofthesecomponentsmustnotcause

dangerousoverpressureconditionsinsidethevacuumpumporin

connectedpipework.Ifrequiredpressuremonitoringorreliefvalves

shouldbeforeseen.

NS0070-0160C InstallationandCommissioning

0870570353(En) Page 9

Flow

Switchnormallyclosedatcorrectwaterflow

Control voltage: < 250 V ~

Max. current: 1.6 A

Flow

Barriergas Dilutiongas

Gastype

(dependsonprocess)

Drynitrogen,airor

othersuitablegas

Drynitrogen,airor

othersuitablegas

Gastemperature 0...+60°C

Filtration £50 mm

Maximum

permissible

flowrate

10SLM 20SLM

Recommended

flowrate 8-10SLM dependsonprocess

Connectionofthelines/pipes

lConnecttheintakelines.

lConnecttheexhaustlines.

lMakesurethatallcaps,safeguardsandsimilarcoversare

mounted.

Oilfilling

TheCOBRANSvacuumpumpsarealwaysdeliveredwithoutoil(see

thechapter“Oiltypes”forinformationontherecommendedoils).

lRefertothepumpnameplatetoidentifythecorrectoiltypeused

forthispump

lOnlyusetheoiltypespecifiedonthepumpnameplate

lPreparethequantityofoilspecifiedinthetable“Oilquantity”.

NOTE:Thequantityofoilspecifiedintheinstallationhandbookisof

informativenatureonly.Checktheoillevelwiththehelpofthevarious

oilsightglasses(OSG)onthevacuumpump.

CAUTION

Beforeyouchangethetypeofoil,makesurethatthenewtypeis

compatiblewiththeoldtype.Ifnecessary,flushthevacuumpump.

lUnscrewthetwooilfillercaps(OFP).

lFillinoil.

lMake sure that the filling level is in the target circle of the oil

sight glasses (OSG).

lMakesurethatthesealsoftheoilfillercaparenotdamaged.

Replacethemifnecessary.

lScrewonthetwooilfillercapshermeticallytight.

lStartthevacuumpump.

Iftheintakelineisequippedwithashut-offdevice:

uClosetheshut-offdevice.

Iftheintakelineisnotequippedwithashut-offdevice:

uPlacearubberplateontheintakeflange.

lLetthevacuumpumprunfor2minutes.

lStopthevacuumpumpandwaitafewminutes.

lMake sure that the filling level is in the target circle of the oil

sight glasses (OSG).

Iftheoillevelisbelowthetarget circle:

uFillinmoreoil.

Iftheintakelineisequippedwithashut-offdevice:

uOpentheshut-offdevice.

Iftheintakelineisnotequippedwithashut-offdevice:

uRemovetherubberplatefromtheintakeflangeandconnect

theintakelinetotheintakeflange.

CAUTION

Thevacuumpumpmaynotbeliftedanymorewhenithasbeen

filledwithoil.

lMakesurebeforeeverytransportthattheoilhasbeendrainedout

ofthevacuumpump.

CAUTION

Thevacuumpumpmustremaininahorizontalpositionwhenithas

beenfilledwithoil.

Fillingincoolingliquid

TheCOBRANSvacuumpumpsarealwaysdeliveredwithoutcooling

liquid(seethechapter“Coolingliquidtypes”forinformationonthe

recommendedcoolingliquids).

lPreparethequantityofcoolingliquidspecifiedinthetable

“Coolingliquidquantity”.

lUnscrewthefillercap(CLF)ontheexpansionvessel.

lFillinthecoolingliquidthroughthefilleropeninguntiltheliquid

startsrunningoutofthescrewonuppercylinder

lStopfillingincoolingliquid.

lFillinmorecoolingliquidthroughthefilleropeninguntiltheliquid

levelis5mminsidetheexpansionvessel(EV).

lCheckthelevelofthecoolingliquidwiththemeasuringscale

locatedunderthefiller.Theleveloftheliquidmustnotlieabove

thebottommarking.

InstallationandCommissioning NS0070-0160C

Page 10 0870570353(En)

Ateliers Busch S.A.

Zone Industrielle

CH-2906 Chevenez

Vacuum Pump

NS 0160 C

S/N = C1405009999

pabs = 0.03 hPa (mbar) Vmax = 160 m /h

nmax = ***** min

Oil = Busch YLC 250 B

-1 m = 250 kg

Oil quantity = 1,5 l

Made in

Switzerland

Year 2014

Busch YLC 250 B

(perﬂuorinated polyether)

CLD

CLF

Coolingliquidfilling

MAX

MIN

MAX

MIN MAX

MIN

lScrewonthefillercap(CLF)forthecoolingliquid.

Savingtheoperatingparameters

Assoonasthevacuumpumpisworkingundernormalconditionsafter

beingswitchedon:

lMeasuretheworkingcurrentofthemotorandsaveitasreference

valueforallfuturemaintenanceandrepairwork.

Recommendationsonoperation

Application

WARNING

Thevacuumpumpisdesignedforuseundertheconditions

specifiedhere.

Iftheseconditionsarenotmet,thereisariskofdamagetoortotal

destructionofthevacuumpumpanditscomponents!

Thevacuumpumpmayonlybeoperatedundertheconditions

specifiedbelow.

TheCOBRANSvacuumpumpsaredesignedforuseinindustrial

applicationsandsimilarindustries.

Maximumpermissibleinletpressure:atmosphericpressure

lMakesurethatthemaximalcounterpressureatthedischargeof

0,2barisneverexceeded.Ifthereisariskofobstructionof

exhaustlines,apermanentdischargepressuremonitoringis

recommended.

Theycanbeusedtodrawgasesandgasmixtures.

WARNING

Whenusingtoxic,inflammableand/orexplosivegases,makesure

thatthesystemcorrespondsindesigntoapplicablelocaland

nationalsafetyregulationsandthatallapplicablesafetymeasures

arefollowed.

Allproduct-specificsafetyregulationsmustbeobserved.

Solidparticlesmustnotgetintothevacuumpump.Proceduralerrors

canresultinthepumpsuckinginacertainquantityofliquid.Ifthe

pumphassuckedinliquid,ashortdryingtimeisnecessaryattheend

oftheprocess.

Thetemperatureofthesuckedgasdependsontheinletpressure.The

lowertheinletpressure(Pa)is,thehigherthetemperatureofthe

drawngascanbe(TGas).Thefollowingvaluesapply:

–Pa<50mbar,TGas<200°C

–Pa>50mbar,TGas<70°C

Thevacuumpumpisdesignedforuseinanenvironmentwhichis

potentiallynon-explosiveenvironment.

Max.permissiblenumberofstartingsperhour:6.

Asfarastemperatureisconcerned,thepumpissuitableforcontinuous

dutyatanyinletpressurebetweenatmosphericandultimatepressure.

CAUTION

Thesurfacetemperatureofthevacuumpumpcanexceed70°C

whenthevacuumpumpisinoperation.

Riskofburns!

Thevacuumpumpmaynotbetouchedwhenitisinoperation.If

touchingthepumpisunavoidable,waituntilthesurface

temperaturehascooleddownorwearprotectivegloves.

CAUTION

Theintensityofthenoiseofthevacuumpumpishigherwithina

certainareaofthepump.

Riskofhearingdamage!

Usersmustwearearprotectionwhenspendingalongerperiodof

timeinthevicinityofanon-insulatedvacuumpump.

CAUTION

TheCOBRANSvacuumpumpsarealwaysdeliveredwithoutoil,

withoutcoolingwaterandwithoutcoolingliquid.

Operationwithoutoilwillresultindamagetothevacuumpump!

Operationwithoutcoolantswillresultindamagetothevacuum

pump!

Thevacuumpumpmustremaininahorizontalpositionwhenithas

beenfilledwithoil.

CAUTION

Thecoolingwaterflow,whichischeckedbytheflowmeterFIS-/01,

mustbeatleast2l/minregardlessofthepositionofthe

thermostaticalvalveTV.

lMakesurethatallcaps,safeguardsandsimilarcoversare

mounted.

lMakesurethattheprotectivedevicewillnotbedisconnected.

lMakesurethattheinletandoutletforthecoolingairarenot

coveredanyway.

lMakesurethatthesystemdoesnotleak.Leakagesofdangerous

substancesmustbeprevented.

lMakesurethatthe“Installationprerequisites”arefollowedand

ensurethatadequatecoolingisprovided.

Thefollowingmustbenotedwhenthepumpisshutdownforalonger

periodoftime:

CAUTION

Ifthereisariskoffrost,allthecoolingwatermustbedrainedoutof

thevacuumpumpifthepumpisshutdownforalongerperiodof

time!

–Drainthecoolingliquid.

uUnscrewthedrainplug(CLD)forthecoolingliquid.

uDrainthecoolingliquidcompletely.

uScrewonthedrainplugforthecoolingliquidagain.

uCollectthecoolingliquidandrecycleitordisposeofit

accordingtolocalornationalregulations.

–Drainthecoolingwater.

uDisconnectthecoolingwaterinletandoutletlines.

uDrainthecoolingwatercompletely.

NS0070-0160C InstallationandCommissioning

0870570353(En) Page 11

Filler cap

Max

lSetthethermometervalveTVtoposition4(closed).Blow

compressedairintothecoolingwaterinletconnection.This

operationremovescoolingwaterfromthemotorcoolingcircuit.

ClosethevalveCWRandsetTVtoposition0(open).

Blowcompressedairintothecoolingwaterinletconnectionagain.

Attheend,openvalveCWRagain.

NOTE:Whenthepumphasnotbeeninoperationforafewdaysor

whenastickysubstancehasbeensucked,itispossiblethatthetwo

screwrotorsofthevacuumpumpwillsticktoeachother.Openthe

plug(PMR)toaccessthescrewrotors.Loosentherotorswiththehelp

ofanAllankeybyturningtheminclockwisedirectionbyhand.

Switchingthevacuumpumpon/off

Firststart-upofthesystem

lMakesurethatthe“Installationprerequisites”arefollowed.

lOpencoolingwatersupply.

lMakesurethatthethermostaticallycontrolledvalve(TV)that

regulatesthetemperatureofthecoolingwaterinthecylinderisset

correctly.

–Thewatertemperatureisregulatedbyadjustmentofthevalve

fromposition0(cold)toposition4(warm).Thesettingmust

correspondtolocaloperatingconditions.

Useofahighersettingisrecommendedforthethermostaticvalve

topreventcondensationinsidethepump.

CAUTION

Changingfromposition0toposition4orviceversamusttakeplace

insteps.Thepumpmuststabiliseaftereverychangeinsetting.

Neverswitchdirectlyfromposition0toposition4orviceversa.

lMakesurethatthecoolingwaterflowinthemotoranddrive

housingissetcorrectly.

–Thecoolingwaterflowisfactoryseton2,5l/minandcanbe

adjustedattheregulatingvalveCWR.Thiswatercircuitisusedto

coolthemotorandtheoil.

WhenchangingthepositionofthethermostaticvalveTV,adjust

theregulatingvalveCWRtoanewsetting.

lMakesurethatthenitrogenflowissetcorrectly(option).

–Thenitrogenflowisfactorysetto18Nl/minandcanbeadjusted

attheregulatingcockDGR.

lSwitchonthevacuumpump.

Ifthesystemisequippedwithasolenoidgatevalveattheintake:

uOpenthesolenoidgatevalve.

Switchingthesystemoff

Ifthesystemisequippedwithasolenoidgatevalveattheintake:

uClosethesolenoidgatevalve.

lSwitchoffthevacuumpump.

lShutoffthenitrogensupply.

lShutoffthecoolingwatersupply.

Maintenance

DANGER

Incasethevacuumpumphasconveyedgasesthathavebeen

contaminatedwithforeignmaterialsthataredangeroustohealth,

theoilandcondensateswillalsobecontaminated.

Theseforeignmaterialscaninfiltratethepores,recessesandother

internalspacesofthevacuumpump.

Dangertohealthwhenthevacuumpumpisdismantled.

Dangertotheenvironment.

Alwayswearprotectiveclothingwhencarryingoutmaintenance

work.

Beforeanymaintenancework,theinletandoutletpipingaswellas

thevacuumpumpitselfmustbeflushedwithnitrogen.

CAUTION

Onlyauthorisedpersonnelmaycarryoutdismantlingworkonthe

vacuumpump.Beforeworkbegins,theoperatorofthevacuum

pumpmustfillinaformora“DeclarationRegardingContamination

ofEquipmentandComponents”thatprovidesinformationon

possibledangersandappropriatemeasures.

Ifthisformhasnotbeenfilledincompletelyandsigned,the

vacuumpumpmaynotbedismantled.

CAUTION

Thesurfacetemperatureofthevacuumpumpcanexceed70°C

whenthevacuumpumpisinoperation.

Riskofburns!

Beforestartingmaintenancework,makesurethatthevacuumpump

hasbeenswitchedoffandthatitcannotbeswitchedonagain

accidentally.Followtheshutdownprocedureinthesection“Switching

offformaintenancework”:

CAUTION

Theoiltemperaturecanreachavalueof100°C!

Riskofburns!

lMakesurethattheoilcircuitandthecoolantcircuithavebeen

emptiedbeforemovingthevacuumpump.

lDonotusestrongsolventsforcleaningoflabelsandstickerson

thepump.

Beforepullingoffthedifferentconnections,makesurethattheintake

andexhaustlinesofthevacuumpumpareventilatedtoatmospheric

pressure.

Whenthemaintenanceworkhasbeenfinished,followtheprocedure

forrestartingaftermaintenancework.

Maintenanceprogram

NOTE:Themaintenanceintervalsdependontheoperatingconditions.

Thefollowingintervalsarebasicvalues,whichcanbeshortenedor

lengtheneddependingonoperatingconditions.Inespeciallydifficult

operatingconditionssuchas,forexample,averydustyenvironment

themaintenanceintervalsmustbeshortenedconsiderably.

Weekly:

lChecktheoillevelandthecolour(see“CheckingtheOil”)

lCheckthevacuumpumpforoilleaks-incaseofleaks,havethe

vacuumpumprepaired(Buschservice)

Maintenance NS0070-0160C

Page 12 0870570353(En)

Monthly:

lMakesurethatthevacuumpumphasbeenswitchedoffandthat

itcannotaccidentallybeswitchedonagain

lCheckthelevelofthecoolingliquid(see“Checkingthecooling

liquid”)

lCheckthecoolingwater(see“Checkingthecoolingwater”)

lChecktheelectricalconnections

lCarryoutavisualinspectionofthevacuumpump

lCheckthevacuumpumpforcoolingliquidleaks-incaseofleaks,

havethevacuumpumprepaired(Buschservice)

lCheckthevacuumpumpforcoolingwaterleaks-incaseofleaks,

havethevacuumpumprepaired(Buschservice)

Yearly:

lMakesurethatthevacuumpumphasbeenswitchedoffandthat

itcannotaccidentallybeswitchedonagain

Iftheinletisequippedwithameshscreen:

uCheckthemeshscreenattheinletandcleanitifnecessary

lCheckthecorrectoperationofthemeasurementandsafety

equipment

lCheckthesealsandreplacethemifnecessary

lDrainthecoolingliquid(see“Drainingthecoolingliquid”)

lPerformavacuumleaktestmeasurementonthepump

lChecktheinletanddischargelinesandcleanorreplacethemif

necessary

Every16’000operatinghours,atthelatest

after4Years:

lOilchange(see“Oilchange”)

lHaveamajoroverhauldoneonthevacuumpump(Buschservice)

Switchingoffformaintenancework

lMakesurethatthevacuumpumphasbeenswitchedoffandthat

itcannotbeswitchedonagainaccidentally.

lSwitchoffthemainpowersupply.

lPulloffthewaterconnections(firstthewaterinletandthenthe

wateroutlet)andnitrogenconnection.

lPutupthesign“Maintenanceworkinprogress”onornexttothe

pump.

Switchingonaftermaintenancework

lRemovethesign“Maintenanceworkinprogress”.

lCheckthelevelofthecoolingliquid;topupwithliquidifnecessary

(see“Refillingcoolingliquid”).

lChecktheoillevels;topupwithoilifnecessary(see“Refilling

oil”).

lConnectthewaterconnections(firstthewateroutlet(CWo)and

thenthewaterinlet(CWi))andnitrogenconnection(GC).

lSwitchonthemainpowersupply.

lMakesurethatthe“Installationprerequisites”arefollowed.

lSwitchonthevacuumpump.

Checkingtheoil

Checkingtheoillevel

lMakesurethatthevacuumpumphasbeenswitchedoffandthat

itcannotbeswitchedonagainaccidentally.

lIndicationoftheoillevelonthevariousoilsightglasses.

Iftheoilleveldoesnotreachthetarget circle:

uTopupwithoil(see“Refillingoil”).

Iftheoillevelexceedsthetarget circle:

uCheckthecondensatedrain.

lDraintheoil(see“Drainingtheoil”).

Refillingoil

NOTE:Oildoesnotnormallyhavetoberefilledoutsidethe

recommendedoilchangeintervals.Adropintheoillevelindicatesa

malfunction(see“Troubleshooting”).

CAUTION

Onlyfillinoilthroughtheoilfilleropening.

CAUTION

Riskofinjury(burns)withopenoilfillerorifice.

Riskofinjuryincaseofbadlyscrewed-inplugs.

Removetheoilfillerplugsonlywhenthevacuumpumpisstopped.

Thevacuumpumpmustonlybeoperatedwhentheoilfillerplugs

arefirmlytightenedupanddonotleak.

lMakesurethatthevacuumpumphasbeenswitchedoffandthat

itcannotbeswitchedonagainaccidentally.

lUnscrewtheoilfillercap(OFP).

lTop up with oil and fill up to the upper level of the target circle of

the oil sight glasses (OSG).

lMake sure that the filling level is in the target circle of the oil sight

glasses (OSG).

lMakesurethatthesealsofthefillercaparenotdamagedandthat

theysitproperly.Replacethemifnecessary.

lScrewonthefillercapagain.

Checkingthecolouroftheoil

NOTE:Theoilmustbeclearandtransparent.Apermanentmilky

colourisanindicationforcontaminationbyforeignbodies.Adark

colourisanindicationforoilthathasbeenchemicallyalteredor

contaminatedbyforeignbodies.

WARNING

Darkcoloredoilmayindicateahazardouspumpconditionwhich

couldcausepersonalinjury.

Ifdarkoilsimilartotheexampleshownisobserved,youhaveto

contacttheBuschCustomerServicewithoutdelay.

NS0070-0160C Maintenance

0870570353(En) Page 13

MAX

MIN

MIN MAX

MAX MIN

Oilchange

DANGER

Incasethevacuumpumphasconveyedgasesthathavebeen

contaminatedwithharmfulforeignmaterials,theoilwillalsobe

contaminated.

Dangertohealthduringthechangeofcontaminatedoil.

Dangertotheenvironment.

Wearprotectiveequipmentduringthechangeofcontaminatedoil.

Contaminatedoilishazardouswasteandmustbedisposedof

separatelyincompliancewithapplicableregulations.

Drainingusedoil

NOTE:Afterswitchingoffthevacuumpumpatnormaloperating

temperaturewaitnomorethan20minutesbeforetheoilisdrained.

lMakesurethatthevacuumpumpisswitchedoffandcannot

accidentallybeswitchedonagain

lMakesurethatthevacuumpumpisventedtoatmospheric

pressure

lPutadraintrayunderneaththeoildrainplugs(ODP)

lRemovetheoildrainplugs(ODP)

lCarefullyremovethedrainplugs

lDraintheoil

lBecauseofwearandtearonthesealsreplacethecurrentdrain

plugswithnewones

lCheckthatnometalswarfstickstothemagnetofthedrainplug,

cleanifnecessary

lRefittheoildrainplugsandtightenup

lDisposeoftheusedoilincompliancewithapplicableregulations

CAUTION

Becausetheendsofthedrainplugsaremagnetic,metalswarfcan

sticktothem.Alwayscleanawaythisswarfwhenremovingthe

drainplugs.

Becauseofwearandtearoftheseals,itisrecommendedtoreplace

thedrainplugswhenevertheoilischanged.

Fillinginnewoil

lPreparethequantityofoilneeded(see“Oiltype/quantity”).

WARNING

Theuseofchemicallycontaminatedorpollutedoilcanleadto

hazardouspumpconditionswhichcouldcausepersonalinjury.

NOTE:Thequantityofoilspecifiedintheinstallationhandbookisof

informativenatureonly.Checktheoillevelwiththehelpofthevarious

oilsightglassesonthevacuumpump.

lMakesurethatthedrainplugshavebeenfittedproperlyandthat

theydonotleak.

CAUTION

Onlyfillinoilthroughtheoilfilleropening.

lUnscrewtheoilfillercap(OFP).

lTop up with oil and fill up to the upper level of the target circle of

the oil sight glasses (OSG).

lMake sure that the filling level is in the target circle of the oil sight

glasses (OSG).

lMakesurethatthesealsofthefillercaparenotdamagedandthat

theysitproperly.Replacethemifnecessary.

lScrewonthefillercapagain.

Checkingthecoolingliquid

Checkingthelevelofthecoolingliquid

lMakesurethatthevacuumpumphasbeenswitchedoffandthat

itcannotbeswitchedonagainaccidentally.

lCheckthelevelofthecoolingliquidwiththemeasuringscale

locatedunderthefiller(CLF)orwitharuler.

Thelevelofthecoolingliquidintheexpansionvessel(EV)maynever

exceed5mmseenfromthebottomofthevessel.

IftheleveldoesnotreachtheMINmarking:

uTopupwithcoolingliquid(see“Refillingcoolingliquid”).

IfthelevelexceedstheMAXmarking:

uDrainthecoolingliquid(see“Drainingthecoolingliquid”).

Refillingcoolingliquid

NOTE:Coolingliquiddoesnotnormallyhavetoberefilledoutsidethe

recommendedchangeintervals.Adropintheleveloftheliquid

indicatesamalfunction(see“Troubleshooting”).

lMakesurethatthevacuumpumphasbeenswitchedoffandthat

itcannotbeswitchedonagainaccidentally.

lUnscrewthefillercapforthecoolingliquid.

Fillingincoolingliquid

lPreparethequantityofcoolingliquidneeded(see“Coolingliquid

type/quantity”).

NOTE:Thequantityofcoolingliquidspecifiedisofinformativenature

only.Checkthelevelofthecoolingliquidattheliquidlevelindicator

locatedunderthefiller(CLF)orwithameasuringscale.

lMakesurethatthedrainplugsitsproperlyanddoesnotleak.

lUnscrewthefillercap(CLF)ontheexpansionvessel.

lFillincoolingliquid.

lMakesurethatthelevelofthecoolingliquidliesbetweentheMIN

andMAXmarkingsoftheliquidlevelindicator.

lMakesurethatthesealsofthefillercaparenotdamagedandthat

theysitproperly.Replacethemifnecessary.

lScrewonthefillercap(CLF)again.

Drainingthecoolingliquid

lMakesurethatthevacuumpumphasbeenswitchedoffandthat

itcannotbeswitchedonagainaccidentally.

lPlaceacontainerunderthedrainplug(CLD).

lUnscrewthedrainplug(CLD).

lDrainthecoolingliquid.

Whencoolingliquidstopsrunningout:

Maintenance NS0070-0160C

Page 14 0870570353(En)

Filler cap

Max

lClosethedrainplug(CLD).

lMakesurethatthesealofthedrainplugisnotdamagedandthat

itsitsproperly.Replaceitifnecessary.

lScrewonthedrainplugagain.

lDisposeoftheusedcoolingliquidaccordingtoapplicable

environmentalprotectionregulations.

Checkingthecoolingwater

Checkingthecoolingwaterflow

lCheckthecoolingwaterflowregularly.

lMakesurethatthespecificationsofthecoolingwaterare

followed.

Checkingthenitrogen

Checkingthenitrogenflow

lCheckthenitrogenflowregularly.

Iftheflowdrops,checkforleaks.

uMakesurethatthespecificationsofthenitrogenarefollowed.

Checkingthecurrentconsumption

lCheckthecurrentintensityofthemotor(s).

Anincreasedintensityisanindicationforafault(see

“Troubleshooting”).

Checkingtheexhaustsilencer(SI)

(optionalaccessory)

lMakesurethatthecondensatedoesnotcollectattheexhaustof

thevacuumpump.

lDrainthecondensateatthedrainopeningandcollectitina

container.

lDisposeofthecondensateaccordingtoapplicableenvironmental

protectionregulations.

lCheckthesoundabsorberregularlyandcleanitifnecessary.

Overhaul

CAUTION

Inappropiatemaintenanceworkonthevacuumpumpcandamage

thepump.

Dangerofexplosion!

Ifrequirementsarenotmet,thevacuumpumpmaynotbeswitched

on!

Shouldworkexceedthedismantlingworkdescribedinthis

handbook,itmayonlybecarriedoutbyauthorisedpersons.

DANGER

Ifthevacuumpumphaspumpedgasesthatwerecontaminated

withforeignbodiesthatarehazardoustohealth,theoiland

condensatearealsocontaminatedwiththeseforeignbodies.

Theseforeignbodiescanpenetrateintopores,openingsandother

internalpartsofthevacuumpump.

Thereisahealthhazardwhendismantlingthevacuumpump.

Thereisalsoadangertotheenvironment.

Priortoshipping,thevacuumpumpmustimperativelybe

decontaminatedandthedegreeofcontaminationmustbe

documentedinadeclarationofdecontamination("Declarationof

Decontamination"),whichcanbedownloadedfrom

www.buschvacuum.com.

Buschservicewillonlyacceptvacuumpumpsthatcomewitha

completelyfilledinandlegallybindingsignedform.

Removalfromservice

Temporaryremovalfromservice

Beforedisconnectingtheintakeandexhaustlinesandswitchingoffthe

coolingwaterandnitrogenlines,makesurethatthelineshave

adjustedtoatmosphericpressure.

Dismantlinganddisposal

DANGER

Ifthevacuumpumphaspumpedgasesthatwerecontaminated

withforeignbodiesthatarehazardoustohealth,theoiland

condensatearealsocontaminatedwiththeseforeignbodies.

Theseforeignbodiescanpenetrateintopores,openingsandother

internalpartsofthevacuumpump.

Thereisahealthhazardwhendismantlingthevacuumpump.

Thereisalsoadangertotheenvironment.

Protectiveclothingmustbewornwhendismantlingthevacuum

pump.

Priortoshipping,thevacuumpumpmustimperativelybe

decontaminatedandthedegreeofcontaminationmustbe

documentedinadeclarationofdecontamination("Declarationof

Decontamination"),whichcanbedownloadedfrom

www.buschvacuum.com.

Disposeoftheusedoilandcondensateaccordingtoapplicable

environmentalprotectionregulations.

Whentheproducthasreachedtheendofitslifetime:

–Decontaminatethevacuumpump.

CAUTION

Dismantlingworkmustbecarriedoutbyauthorisedpersonnel.

Beforeworkbegins,theoperatorofthevacuumpumpmustfillina

formora“DeclarationofDecontamination”thatprovides

informationonpossibledangersandappropriatemeasures.

Ifthisformhasnotbeenfilledincompletelyandsigned,the

vacuumpumpmaynotbedismantled.

–Draintheoil.

uDisposeoftheoilaccordingtolocalenvironmentalprotection

regulations.

NS0070-0160C Overhaul

0870570353(En) Page 15

–Drainthecoolingliquid.

uDisposeofthecoolingliquidaccordingtolocalenvironmental

protectionregulations.

–Begindismantlingthevacuumpump.

CAUTION

Wearprotectiveclothingwhencarryingoutdismantlingwork.

uDisposeofthevacuumpumpasscrapmetal.

–Disposeoftheindividualpartsofthemachineaccordingtolocal

regulations.

Removalfromservice DP80-2000C-T

Page 16 0870564647(En)

Troubleshooting

WARNING

Riskofelectricalshock,riskofdamagetoequipment.

Electricalinstallationworkmustonlybeexecutedbyqualifiedpersonnelthatknowsandobservesthefollowingregulations:

- IEC364orCENELECHD384orDINVDE0100,respectively,

- IEC-Report664orDINVDE0110,

- BGVA2(VBG4)orequivalentnationalaccidentpreventionregulation.

CAUTION

Duringoperationthesurfaceofthevacuumpumpmayreachtemperaturesofmorethan70°C.

Riskofburns!

Letthevacuumpumpcooldownpriortoarequiredcontactorwearheatprotectiongloves.

Problem PossibleCause Remedy

Thevacuumpumpdoesnotreachtheusual

pressure

Thevacuumsystemorsuctionlineisnot

leak-tight

Checkthehoseorpipeconnectionsforpossible

leak

Partialclogginginthesuction,dischargeor

pressureline

Removetheclogging

Longsuction,dischargeorpressurelinewith

toosmalldiameter

Uselargerdiameter

Internalpartswornordamaged Repairthevacuumpump(Buschservice)

Thevacuumpumpdoesnotstart Thedrivemotorisnotsuppliedwiththecorrect

voltageorisoverloaded

Supplythedrivemotorwiththecorrectvoltage

Thedrivemotorstarteroverloadprotectionis

toosmallortriplevelistoolow

Comparethetriplevelofthedrivemotorstarter

overloadprotectionwiththedataonthename-

plate

Correctifnecessary

Incaseofhighambienttemperature:

Setthetriplevelofthedrivemotorstarter

overloadprotection5percentabovetheno-

minaldrivemotorcurrent

Theconnectioncableistoosmallortoolong

causingavoltagedropatthevacuumpump

Usesufficientlydimensionedcable

Thedrivemotorisdefective Replacethedrivemotor(Buschservice)

Thevacuumpumpisblocked Solidforeignmatterhasenteredthevacuum

pump

Repairthevacuumpump(Buschservice)

Makesurethesuctionlineisequippedwitha

meshscreen

Ifnecessaryadditionallyprovideafilter

Corrosioninthevacuumpumpfromremaining

condensate

Repairthevacuumpump(Buschservice)

Checktheprocess

Observethechapter“InstallationandCommis-

sioning,OperatingNotes”

Thevacuumpumpwasruninthewrong

direction

Repairthevacuumpump(Buschservice)

Whenconnectingthevacuumpumpmakesure

thevacuumpumpwillruninthecorrectdirec-

tion(see“Installation”)

Condensateranintothevacuumpump Repairthevacuumpump(Buschservice)

Makesurenocondensatewillenterthevacuum

pump,ifnecessaryprovideadripleganda

draincock

Draincondensateregularly

DP80-2000C-T Troubleshooting

0870564647(En) Page 17

Thevacuumpumpstarts,butlaboursorruns

noisilyorrattles

Thedrivemotordrawsatoohighcurrent(com-

parewithinitialvalueaftercommissioning)

Connectionsinthedrivemotorterminalboxare

defective

Notalldrivemotorcoilsareproperlyconnected

Thedrivemotoroperatesontwophasesonly

Checktheproperconnectionofthewires

againsttheconnectiondiagram

Tightenorreplacelooseconnections

Thevacuumpumprunsinthewrongdirection Verificationandrectificationsee“Installation

andCommissioning”,correctifnecessary

Standstilloverseveralweeksormonths Letthevacuumpumprunwarmwithinlet

closed

Improperoilquantity,unsuitableoiltype Usetheproperquantityofoneoftherecom-

mendedoils

(see“Oil”,oilchangesee“Maintenance”)

Nooilchangeoverextendedperiodoftime Performoilchangeincl.flushing(see“Mainte-

nance”)

Foreignobjectsinthevacuumpump

Stuckbearings

Repairthevacuumpump(Buschservice)

Thevacuumpumprunsverynoisily Defectivebearings Repairthevacuumpump(Buschservice)

Thevacuumpumprunsveryhot

(theoilsumptemperatureshallnotexceed

100°C)

Coolingwaterflowtoolow Checkthecoolingwatercircuitandadjustthe

flowifnecessary

Ambienttemperaturetoohigh Observethepermittedambienttemperatures

Temperatureoftheinletgastoohigh Observethepermittedtemperaturesforthe

inletgas

Oilleveltoolow Topupoil

Checktheoilfillerplugs

Checkthemechanicalseals(option)

Mainsfrequencyorvoltageoutsidetolerance

range

Provideamorestablepowersupply

Partialclogginginthesuctionordischargeline Removetheclogging

Longsuction,dischargeorpressurelinewith

toosmalldiameter

Uselargerdiameter

Coolingwatertoolow Quickcouplerforcoolingwaterdislocated

Watersupplypressuretoolow

Coolingwaterpipingobstructed

Leakageofcoolingwaterpiping

Connectthequickcouple

Applyproperpressure

Clean/replacepiping

Replaceseals

Pumptemperaturetoohigh Failureofdischargeline

Backpressureofpumptoohigh

Coolingwaterflowtoolow

Vacuumcontaminatedwithproductresidues

Ambienttemperaturetoohigh

Checkthedischargeline

Chethedischargepiping

Checkthecoolingsystem

Disassemblethevacuumpump

Checkthelimitsofuse

Oilleveltoolow Oiltoolow

Oilleakage

Checktheoilcasingsealings

Refillwithoil

Coolingliquidtemperaturetoohigh Lackofcoolingliquid

Escapeofcoolingliquid

Fillwithcoolingliquid

Checkoffthecoolingliquidcircuit

Troubleshooting DP80-2000C-T

Page 18 0870564647(En)

Oiltype/quantity

Oiltype

lMakesurethattheoiltypecorrespondstothespecification:

lRefertothepumpnameplatetoidentifythecorrectoiltypeusedforthispump

Denomination BuschYLC250B

Base Perfluorinatedpolyether

Specificgravity(20°C[g/cm3]) 1,90

Kinematicviscosityat20°C[cSt] 270

Viscosityindex(20°C) 113

Decompositiontemperature[°C] > 290

Pourpoint[°C] -35

Partno.0,5litrepackaging 0831000054

Partno.2,5litrespackaging 0831514524

Colour Clear,colourless

WARNING

Theuseofchemicallycontaminatedorpollutedoilcanleadtohazardouspumpconditionswhichcouldcausepersonalinjury.

Oilquantity

Thequantityofoilspecifiedinthefollowingtableisofinformativenatureonly.Checktheoillevelwiththehelpofthevariousoilsightglasseson

thevacuumpump.

Quantity[Liter] Screwvacuumpump

Motorside(A) Inletside(B)

NS0070C 0,9 0,5

NS0160C 1,0 0,5

NS0070-0160C Oiltype/quantity

0870570353(En) Page 19

Ateliers Busch S.A.

Zone Industrielle

CH-2906 Chevenez

Vacuum Pump

NS 0160 C

S/N = C1405009999

pabs = 0.03 hPa (mbar) Vmax = 160 m /h

nmax = ***** min

Oil = Busch YLC 250 B

-1 m = 250 kg

Oil quantity = 1,5 l

Made in

Switzerland

Year 2014

Busch YLC 250 B

(perﬂuorinated polyether)

Coolingliquidtype/quantity

Coolingliquidtype

lMakesurethatthecoolingliquidtypecorrespondstospecifications:

Specifications ZitrecM-25(ready-to-use)

20litrescan 5litrescan

partno.0831238 761 partno.0831563469

Coolingliquidquantity

Thequantityofcoolingliquidspecifiedinthisinstructionsmanualisofinformativenatureonly.Respecttheprocedureoffillingthecoolingliquid.

Quantity ZitrecM-25(alreadymixedready-to-use)

NS0070-0160C 4litres

CAUTION

Theproportionofpureglycolandwaterforthecoolingliquidcorrespondstoapercentageof40%pureglycoland60%water.Itisthereforenot

necessarytopreparethemixbeforeuse.Butwhenusingpureglycol,itisimperativetopreparethemixpriortofillingthepumpandtorespect

thisproportion.

Coolingliquidtype/quantity NS0070-0160C

Page 20 0870570353(En)

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